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October 21, 2013 10:45 pm PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/E3T36PDTgw8/story01.htm
DEA instructions for testing bills forcocaine
Michael from Muckrock sez, "Here's a science experiment that would catch the attention of high schoolers: Testing cash for cocaine traces in seven easy steps, courtesy of the Drug Enforcement Agency."In addition to being a great way to instruct kids in proper titration technique, converting between various metric measurement units, and evaporating solvents, the DEA case is a great example in the need to exercise caution in examining noise in empirical evidence: The DEA lab ultimately advised scrapping money testing altogether since 30 percent of one sample study of "clean" money turned up a positive.
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Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/E3T36PDTgw8/story01.htm
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